shipley



March 14, 1933. B, M, sHlPLEY 1,901,064

CASH REGISTER Filed Jamo, 195o :e sheets-sheet 1 B. M. SHIFLEY CASH REGISTER -Marfch 14, 1933.

Filed Jan. 30, 1930 2 Sheets-Sheet 2 Bemis M. Shipley His. @Llamar Patented Mar. 14, 1933 'UNITED STATES PATENT OFFICE y y 5 BEENIS M. SI-IIIPLEY, 0F DAYTON, OHIO, ASSIGNOR TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OF MARYLAND CASH REGISTER Application led January 30, 1930. Serial No. 424,690.

This invention relates to improvements in cash registers and like machines and is more particularly directed to improvements in machine-locking mechanism for such machines.

The invention is an improvement on the mechanism disclosed in applications for Letters Patent of the United States, Serial Nos. 608,281 and 687,305, filed December 21, 1922, and January 19, 1924,frespectively, by Bernis M. Shipley. c v

rEhe Shipley machines disclosed in the above mentioned applications register transactions, or sales, Comprising a single item, and sales wherein a plurality of items are registered and the totals thereof taken, the former transactions being known as singleitem transactions, and the latter as multiple item transactions. At each of the above transactions the machine issued a check or receipt, which is detached and presented to the customer together with the article or articles purchased.

Such machines are adapted for use in a variety of places of business, such, for instance as restaurants, and 10 cent stores, groceries, chain stores, etc., and it is highly rable that each customer receive the rece it issued by the machine for the goods purchased. These receipts 'are printed by the machine on the web of a receipt paper normally supplied in the shape of a roll and which in most cash registers is kept normaliy under lock and key, it being necessary, when the supply is exhausted in a register, to cail the proprietor who has possession of the hey, to renew the supply of receipt papern However, the machine disclosed in the ahorre mentioned Shipley applications is used in places of business wherein a large volume of sales is experienced, requiring fre,- cuent renewal of the receipt paper, for which reason, the ioclr is omitted from the cabinet enclosing the receipt paper supply, giving access thereto to the operator who may repiace the exhausted roll with a new. roll whenever necessary.

n vorder to place a new roll of receipt papcA in the proper position of the printing mechanism ofthe machine disclosed in the above mentioned applications, and to thread the web thereof through the printing mechanism, it is necessary to separate the usual tension roller from the feed roller usually provided in such record-issuing printing mechanisms. This is accomplished manually in machines of this type, and means is usually provided to maintain the tension roller in its retracted position while the receipt web is being placed in position, after which the operator is expected to restore the tension roller to contact with its feed roller before operating the machine. It frequently happens that the operator, either forgetfully or intentionally, fails to reestablish contact of the tension roller with its associated feed roller, resulting in rendering the receipt issuing mechanism temporarily ineffective to issue a receipt. Since it is highly important that Ieach and every customer receives the printed, receipt for his purchase, bearing thereon the printed amount of each item and the total thereof, or, if the transaction comprises a single sale, theamount of this one item, it is desirable that the operator be compelled to reestablish contact between the tension roller and the feed roller before the machine may be operated for any purpose.

It is therefore an object of the present invention to provide a machine of the type disclosed in the applications referred to above with novel means to compel the operator to render the receipt tension mechanism effective before the machine may be released for operation.

Another object is to provide a machine of the type indicated', with novelmanipulative means to latch the tension roller in contact with a feed roller.

Still another object is to provide a receipt-issuing mechanism including a. feed roller and a tension roller, with novel manipulative means to latch the tension roller in Contact with the feed roller and which, ,when roclred to release the tension roller, locks the machine against release for operation.

lVith these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts,

the essentialelements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

In said drawings:

Fig. 1 is a detail view in left elevation of the feed and tension rollers and the locking member.

Fig. 2 is a detail View of the release shaft and the release stop slide.

Fig. 3 is a top plan view of the feed mechanism and the locking device.

Fig. 4 is a View in right elevation of the mechanism for operating the release shaft.

Fig. 5 is a fragmentary view of the tension roller and its frame.

, General description i add amounts thereon.

The differential mechanism also adjusts the printing `mechanism to print the amounts entered into the totalizer and the total thereof on an issuing receipt, and yalso onv a record strip retained in the machine.

The differential mechanism also provides a convenientmeans to set `indicators to display the amounts entered in the item vtotalizer and the total thereof, for the totals Vaccumulated in the other totalizers with which the machine is provided. i

Check feeding mechanism, including a feed roller and tension roller was provided in the machine disclosed in therShipley applications above mentioned, to feed the printedcheck or receipt from the machine, where, after the operation the check -or receipt was manually detached from the web of the receipt paper and handed to the customer.

The description of the machine on which theJ improved printing device is adapted to (be used` is omitted'from this specification,

and only those parts thereof which exercise a control over the check issuing device are illustrated herein. For a full and complete 69 understanding of the -machine reference should be lmade rto either, or both, of the above mentioned Shipley applications, Seri- "al Nos. 608,281 and 687,305.-

The printing device'is attached to the left 65 side frame of the machine and the drawings shown the mechanism as looking toward the Vmentioned Shipley applications are normally locked against idle operation. The locking mechanism is readily released to permit operation of the machine, by rocking a release shaft which controls a clutch mechanism (not shown) and which also completely circuits through an electric motor or other driving means.

f In the present disclosure, a shaft 33 2, 3, and 4) suitably journaled in the right side frame and in the left side frame (not shown) of the machine, corresponds to Shipleys release shaft and is constantly urged to rock clockwise by a drive spring 34 (Fig. 4) compressed between the bottom of a slot in a link 35 and the shoulders of a pair of spring pilots 36 (only one of which is shown) on a stud 37 projecting from an arm 38 fast on the release shaft 33 through the slot in the link 35, to release the machine for opera.- tion. The release shaft 33 is normally restrained against clockwise rotation by a stud 39 projecting from a restraining arm 40 resting against the end of a dog 41 journaled on a stud 42, projecting from the right side frame 30 of the machine. Y

When the pawl 41 is rocked counter clockwise out ofthe path of the stud 39 by mechani-sm to be `described later, the spring 34 erzpands and rocks the arm 38 and release shaft 33 clockwise to release the machine for operation. l

The dog 41 is rocked by depression .of a release bar 43 (Fig. 4) the stem 44 of which is detachably mounted on a slide 45, carried on studs 46 projecting from the right side frame V30 of the machine. A button stud 4'? floating in a slot 48 in the slide 45 and ina slot 49 in one arm of a bell crank 50 pivoted on aV stud 51, projecting from theright side framer 30, connects the slide to the bell crank. A link 52 connects the bell crank 50 to a downwardly extending arm 53 secured to the dog 41. A spring 54normally holds the slide 45 in its outward or undepressed position.

When the release bar 43 is depressed, it compresses a spring guided by a pilot on an ear 61 on the slide 45 and by a pliot on an ear 62 of the bell crank 50, until the tension of said Jspring is sufficient to overcome the friction of the stud 39, pressing against the end of the dog 41 under the influence of the spring 34. When the friction is overcome, the release bar 43, through the train of mechanism just described, rocks the dog 41 out. of the path of the stud 39 whereupon the spring 34 expands and rocks the release shaft 33 clockwise. This movement of the release shaft 33 positions its flat stud 39 beneath the dog 41 and the stud 37 moves to the top of the slot in the link 35. The clockwise movement of the arm 38 and the release shaft 33 is limited by an arm 63 rigidwith the arm 38, striking a stop stud 64 on the frame 30.

To rock the release shaft 33 counter clockwise to its normal position to permit the spring 54 to restore the dog 4l to its position in the path of the stud 39, the link 35 is lowered by the following mechanism:

A large gear 65 (Fig. 4) rotatably mounted on a stud 66, projecting from the side frame 30 `of the machine, is adapted to make onehalf of one rotation in a counter clockwise direction at each adding operation of the machine by any suitable mechanism (not shown) A cam groove 67, cut in the side of the gear 65, cooperates with a roller 68 on a lever 69, pivoted on a stud 70 projecting from the right side frame 30 of the machine to rock the lever 69 first clockwise, and then counter clockwise to its normal position near the end of each operation of the machine;

On the clockwise movement of the lever 69 a stud 71 thereon projecting laterally through a recess formed in the wall of an opening 72 in the link 35, lowers the link to rock the arm 38, release shaft 33 and arm 40 counter clockwise. This carries the flat stud 39 to the rear of the dog 41, whereupon the spring 54 draws the slide 45 outwardly, which through the bell crank 50 and link 52 rocks the dog clockwise into the path of the stud 39. Now when the cam groove 67 rocks the lever 69 to raise the link 35, the stud 39 encounters the end of the dog 41 and its clockwise movement is arrested thereby. The remainder of the upward movement of the link 35 compresses the spring 34 preparatory to rocking the release shaft 33 when the motor bar 43 is again depressed to release the machine for operation.

As stated above, the printing mechanism of the machine disclosed in'Shipleys applications, mentioned above, is supported at the lefthand end of the machine between the left. side frame (not shown) andv the printer frame 31, and between the printer frame 31 and the printer sub-frame 32, suitably supported on the printer frame. Only such of the Shipley printingr mechanism as is appertinent to the present invention is illustrated herein and reference may be had to the Shipley applications, Serial Nos. 608,281 and 687,305, mentioned above, for a full and coinplete understanding of the structure and operation of said printing mechanism.v

Generally the printing mechanism includes the usual type carriers (not shown) and suitable printing hammers (also not shown) to take impressions on an issuing receipt paper indicated at 80'(Figs. 1 and 5). After the impressions have been made from the type carriers, set by the differentials under the control of manipulative keys, as disclosed in the above mentioned application, on the check web 80, a check feed roller 81 (Figs. 1 and 2) rotatably mounted on a rod 82, secured in the printer frame 31, and which assists in supporting the printer sub-frame 32, is rotated counter clockwise, as viewed in Fig. 1, to feed the check out of the machine through a suitable aperture in a casing or cabinet a fragment 83 of which appearsin Fig. 1. After the check is fed out of the printing mechanism it may be grasped by the operator and detachedV from the web by drawing it across a stationary knife 84 in a well-known manner.

To enable the feed roller 81, when rotated by any suitable means, (preferably by such a mechanism as that disclosed in the above mentioned Shipley applications) to feed the web 80 itis necessary that a tension roller 85 (Figs. 1 and 5) yieldingly press the web 80 of the Vcheck paper` against the periphery of the feed roller'.

The tension roller 85 is rotatably mounted on a rod 86, carried at the free ends of a pair of arms 87 (Fig. 5)' onlyone of which is `shown herein, journaled on a stud 88 projecting from the printer frame 31. A sleeve 89 surrounding the stud 88 connects the arms 87 thereby forming, with the rod 86 and arms 87, a frame for the tension roller 85, said frame being rockable on the stud 88. A spring 90, (Fig. 5) coiled about the sleeve 89, has one of its ends anchored under a stud in one of the arms 87. and the other end contacting with the underside of a broad fiat bail 91. The bail 91 connects an arm 92 (Figs. 3 and 5), pivoted on the stud 88 wit an arm 93 (Fig. 1) also pivoted on the stud 88. The spring 90 urges the tension roller frame `86-87-`-89 clockwise, yieldingly pressing the tension roller 85 against the feed roller 81, thereby enabling this roller, when rotated, to advance the check web. The bail 91 also forms a platform or guide for the check web as it is fed past the feed roller and out of the aperture in the cabinet 83.

By rocking the arms 92 and 93, and the bail 91 counter clockwise, the bail picks up the arms 87 of the tension roller frame and carries them counter clockwise therewith to remove the tension roller 85 from contact y with, the feed roller 81, thereby permitting the operator to freely insert the end of a new roll of paper between the rollers. 1

However, before the arms 92 and 93 can be rockedcounter clockwise, it is necessary to removeva hook 94 from beneath a projection 99 on the arm 93. The hook 94 extends from the lowerend of a downwardly prothe feed roller.

ISO

jectingrestraining arm 95 of a locking lever 96 journaled on the rod 82', the other arm 97 of which lever96 carries a curvedblock 93 .the purpose `of which will be `later described. This is done by grasping a knurled 4knob 100 projecting from an aligner disk 101 secured to the aligning lever 96 and rocking the disk and the lever 96 counter clockwise to that position wherein the hook 94 is ineifective to restrain the arms 92 and 93. A spring-pressed aligner stud 102, carried by kan aligner arm 103 pivoted on a stud 104 projecting from the sub-frame 32, coacts with spaced recesses in the periphery of the alining disk 101 yieldingly to retain theV aliner 96 in the position to which it is manually set.

After the locking lever 96 is rotated counter clockwise to unhook theprojection 99, the arms 92 and 93 are free to be rotated counter clockwise to release the tension roller from This may be done in two manners. First, by pressing downwardly on anV ear 110 projecting outwardly from .the arm 93, in which case itis necessary for the operator to maintain pressure yon the ear 110 while inserting the end of the new web be tween' the rollers 81 andv85 as a spring111, having one of its ends attached to an arm 112 pivoted on the stud 88 and connected to the arm 92 Vby a hub 113, constantly urges the arm 112, hub 113 and the arms 92-and 93 Aclockwise to Vpress the tension roller 85 againstthe Afeed roller 81.` As soon as the loperator removes the pressure from the ear 110 the spring 111 acts to rock the arm 112, hub 113 and arms 92 and 93 clockwise, thereby permitting the spring 90 to restore the roller into yielding contact with the periphery of the feed roller 81. The second method of rocking the tension roller from contact with its feed roller, is by a tension release lever 114 (Figs. 1 and 3) journaled on a 'stud 115 projecting from the printer frame 31 and which release lever 114 is connected to abell crank 116 also pivoted on the stud 115, by a. spring 117 stretcl'ied between an ear on an arm 118 of thev bell crank and an ear on the leverV 114. A stud 119 on the lever 114 projecting through a concentric slot 120 in the other arm 121 of the bell crank, also connects the lever 114 therewith.

The tension release lever 114 `projects through a suitable opening in the cabinet 83 where it maybe grasped by the operator and rotated counter clockwise, as viewed in Fig. 1, to, by the spring 117, rock the bell crank 116 also counter clockwise.

The arm 121 of the bell crank 116 forms a cam arm cooperating with a roller 122 on the arm 112,which cam arm 121, when the bell crank 116 is rocked counter clockwise,

ocks the arm 112 and, throughthe hub 113 u n(Fig. 3),A rocks the arms 92 and 93 and bail 1 also counter clockwise. At this movement the bail91picks zupthe arms 87 and carries the tensionroller 85 out of contact` with the feed :roller .81. f

The peripheryof-the cam arm 121 is provided with two depressions'or recessesA` into which the roller 1,22 is adapted to drop under the influence'v of the spring 111 toY hold the cam arm'121in the particular position to which itis moved.'` 4lherecess farther clockwise is radially a greater distance from the fulcrum 115 of the bell cra-nk 116 wherefore, when .the ,bell cra-nk is rocked counter clockwise from thev position in which it appears in Fig. 1, so that the roller 122drops into the recess nearest the lever 114, the arm 112,

arms 92 and 93 and the tension roller 85 are held in their respective moved positions to retain the tensionroller 85 out of contact with a feedroller 81 thereby rendering the check feed device ineffective so long as the f lever 114 and the. bell `crank their moved positions. y

n Also, as long as the tension release lever 114 and the bell crank 116V remain in their uppermost, or farthest counter clockwise position, the tension roller 85 will be held apart from the feed roller,and in this positionof the arms 92'and 93, the projection 99'rests 116 remain Vin 1in the pathof the nose of the hook 94 thereby preventing clockwise movement to normal 5) brings the tension roller 85 into contact with the feed roller 81, the arms 112, 92 and 93, and the bail v91 moving a slight additional distance to give the spring a great er tension togpress the roller 85 more firmly against the roller 81.

The flexible connection is provided between the lever 114 andfthe'bell crank 116,'so that if the operator tries to forcibly rock the lever counter clockwise while the hook`94 is effective to prevent counter ,clockwise movefil lment of the arms 92, 93 and 112, the lever 114 is free to rock b-ut merely stretches the spring 117 which, when the lever is released, restores it to its proper position.

As soon as the arm 93 is raised to bring the projection 99 above the hook 94 the operator may grasp the knurled kneib and rock the lever 96 clockwise to move the hook94 below the projection 99, locking the tension roller in its leffective position until the lever 96 is n again rocked counter clockwise. l

It was stated abovethat the purpose of the present invention is to enforce reestablishment of effective contact between the tension roller and thefeed roller, after these parts abled to operate the machine regardless of the effectiveness or ineifectiveness of the tension roller. Mechanism forming an interlock between the tension roller operating mechanismand the machine releasing mechanism will now be described. f

The curved block 98 (Figs. 1 and 3) carried by the arm 97 of the locking lever 96, when the lever is rotated counter clockwise to free the hook 94 from the projection 99 thereby freeing the tension roller mechanism for operation, is movedk into position to the left of, and in the path of, an ear 130 bent at right angles to the righthand end, as viewedl in Fig. 1, of a link 131 slidably mounted near its righthand end on a stud 132 projecting from the sub-frame 32 and having its lefthand end pivotally connected by a coupling stud 133 to a link 134 mounted on an eccentric 135 of a lock barrel 136 forming a part of a lock 137 secured to the sub-frame 32.

By inserting a key 138 (Fig. 3) in the barrel 136 of the lock and rotating said barrel 180 degrees the eccentric 135 raises the link 134 to the position indicated by dot and dash lines in Fig. 1, to enter the coupling stud 133 in a notch 139 in the loweredge of a companion link 140, having its lefthand end slidably supported on a stud 141 projecting from the printer sub-frame 32 and pivotally connected at its righthand end, as viewed in Fig.

' 1, to an arm 142v fast on a shaft 143 j ournaled in the printer frame 31 and in the printer subframe 32. A stud 144 (Figs. 2 and 3) on an arm 145 fast on the shaft 143 near thev end opposite the end on which is-fast the arm 142, projects through ay clearance opening 146 in the printer frame 32 and is embraced by a vertical slot 147 in the lower edgeof a locking slide 148, slidable horizontally on studs 149 projecting from the printer frame 32. A stud 150 (Figs. 1, 2 and 3) projecting laterally from an arm 151 fast on the release shaft 33, normally rests in the mo'uth of an open cam slot 152 in the upper edge of the locking slide 148 near the lefthand end thereof.

When, as above described, the release shaft 33 rocks clockwise, as viewed in Fig. 4-and counter clockwise as viewed in Fig. 2 to release the machine for operation, it forces the stud 150 (Fig. 2) into the cam slot 152, thereby shifting the slide 148 toward the left in the direction of its length. Movement of the slide 148 (Fig. 2) toward the left, by the pin and slot connection 144 and 147, rocks the arm 145, shaft 143 and arm 142 (Figs. 1 and 3) clockwise to slide the link 140 (Fig. 1) toward the left, as viewed in this figure, in the direction of its length. j

If the key 138 has been inserted in the lock barrel 136, as above described, and this barrel has been rotated through one-half of yone rotation to draw the coupling stud 133 into the notch 139 of the link 140 this link on its leftward movement draws the link 131 therewith, providing the locking lever 96 (Fig. 1) occupies the position in which it appears in this figure. However, if, as above described, the operator has rocked the lever 96 counter clockwise to move the hook 94 from beneath the projection 99 to enable him to release the tension roller 85 forthe purpose of inserting a newt roll Vof .receipt paper, the counter clockwise movement of the lever carries the block 98 into the path of the ear 130 on the link 131, thereby blocking leftward movement of this link, and through the coupling stud 133 restingy in the notch 139 in the link 140 blocks movement toward the left of this link, which through the arm 142, shaft 143 and arm 145 obstructs the leftward movement of the locking slide 148 and obviously, if this slide is prevented from moving toward the left, the stud 150, as the shaft 133 under the inuence of the spring 134 (Fig. 4) endeavors to rock counter clockwise, as viewed in Fig. 2, is arrested by a shoulder 153 in the cam slot 152, thereby holding-.up the releasing movement .of the shaft 33 and preventing release of the machine.

As soon as the new roll of paper has been inserted. in the printing mechanism and the web is fed between the rollers 81 and 85, the operator may restore the roller 85 to contact with the roller 81, as above described, after which the lever 96 is free to be rocked clockwise, moving the hook 94 on the downwardly extending arm 95 thereof beneath the. projection 99, thereby locking the tension roller 85 in positive contact with the feed roller 81 andremoving the block 98 from behind the ear 130, freeing the release shaft for operation. A

It frequently happens that the proprietor or auditor desires to use the machine to add a series of items which do not constitute sales and for which, therefore, it is not desired to issue receipts. In this case the interlocking devices are manipulated in the following manner. First, the operator rocks the lever 96 counter clockwise to remove the hook 94 from beneath the projection 99 after which the tension roller operating mechanism is free to be operated bycounter clockwise movement ofthe tension release lever 114. However, as above described, the block 98 is at the same time positioned behind the ear 130 on the link 131, thereby preventing leftward movement of this link. To obviate this condition the proprietor inserts his key in the lock barrel 136 and rotates the lock 180 degrees to lower the link 134 thereby removing the coupling stud 13 3, connecting the link 131 and the link 140, from 4the notch 139 in the link 140, whereupon the stud 150 is free to move into the cam slot 152 forcing the link 148 to-y thearm 145, shaft 143 and arm 142 clockwise to move the link 140 leftward independently of the link 131 which remains locked by the` block 93.

It is also desirable to prevent separation ofthe tension roller 85 from the feed roller 81 after the machine has been released for operation. It will be recalled that the normal position of the coupling stud 133 is within the notch 139 in the link 140 in Vwhich position both Vthe link 140 and the'link 131eare moved leftward as a unit each time the machine is released for operation. This movement positions the ear 130 beneath the block 98 on the arm 97 of the lever 96 thereby preventing counter clockwise rotation ofl this lever to remove the hook 94 fromthe projection 99, thus insuring that, after the machine is once released for operation, the operator cannot manipulate the tension roll operating mechanism to release, the tension thereby rendering the receipt feeding mechanism ineffective.

When the mechanism illustrated in Figure 4 rocks the release shaft counter clockwise, as viewed in this ligure and counter clockwise as viewed in Fig. 2, the stud 150 shoves the link 148 toward the right thereby krocking the arm 145,`shaft 143 and the arm 142 (Fig. 1) connter clockwise to draw the link 140 and through the coupling stud 133, the link 131 toward the right to reposition the ear 130 just to the right of the path of the block 98.

VVhil'e the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is'not intended to confineV the invention to the oneV form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

IVhat is claimed as new, is:

1. 'In a machine rof the class described; the combination with a machine releasing mechanism; a feeding means; and tension means for the feeding menas; of means to releasably hold theitension means in contact with the feed means; means to separate the tension means from the feed means.; and means operable by the holding means to lock the machine releasing mechanism against releasing movement.

2. In a machine of theclass described; the combination with a machine releasing mechanism; a feeding mechanism; and a tension means for the feeding mechanism; of means intermediate the tension means and the machine releasing means to hold the tension means in contact with the feed mechanism; means operable after operation of the holding means to release the tension means; and meansoperable by the holding means to lock the machine releasing mechanism. Y

3. In a machine of the class described; th combination with a. machine releasing mechanism; a record material feeding means; and

tension means for the feeding. means; ofy

manipulative means intermediate the tension means and the machine releasing means to releasably hold the tension means in contact 'to releasey the tension means; and means operable by the holding means to lock the machine releasing means.

5.v In a machine of the class described; the combination with Va machine releasing means feedingy means; and tension means for the feeding means;'of a lever to releasably hold the tension means in contact with the feeding means; means to separate the tension means from the feeding means; and means operable by the lever to lock the machine releasing means against movement. f i

. 6. In a machine of the class described; the combination with a machine release shaft; a record material feeding means; and a tension means for the feeding means of a lever to releasably hold the tension means in contact With the feeding means; means to separate the tension means from the feeding means; and a block on the lever to obstruct releasin-g'movement of the machine release shaft.

7. Ina machine of the class described; the combination with amachine releasing mechanism; anda feeding mechanism inclue-.ing a feed roller and a tension roller; of means to releasably hold the tension roller in con.- tact with the feed roller; means to yseparate the tension roller from the feed` roller; al block on the holding means; and means intermediate the block and the machine releasing mechanism to restrain said mechanism against releasing movement.

8. In a machine of the class described; the combination with a releasing mechanism; and a record. material feeding means, including a feed roller and a tension roller; of a rockable frame for the tension roller; manipulative means to rock the frame to release the tension roller; a manually operable lever` to restrain the'frame; a link adapted to be operated by operation of the releasing mechanism; and means on the lever to prevent operation of the link.

9. In a machineof the class described; the combination with arelease shaft; and a feeding mechanism including a feed roller and a tension roller; of a rockable frame for the tension roller; manipulative means to rock the frameV to move the tension roller away from thej feedroller; a hooked lever to hold the tension roller against movement; a link; a block operated by the lever to obstruct movement of the link; another link adapted to be operated by the release shaft; and means to connect the first-mentioned link With the second-mentioned link to restrain the release shaft against releasing movement.

10. In a machine of the class described; the combination with a releasing means; a feeding means; and a tension means for the feeding means; of means to releasably hold the tension means in contact with the feeding means; means to separate the tension means from the feeding means; a link operably connected to the releasing means; a second link; means operated by the holding Ameans to restrain the second-mentioned link; and means to connect the second-mentioned linkto the first-mentioned link to restrain the releasing means against operation.

11. In a machine of the class described; the combination with machine-release shaft; a record material feed roller; and a tension roller; of a lever to maintain the tension roller in its effective position and adapted to be moved to an ineffective position to release the tension roller; manipulative means to withdraw tl e tension roller tov an ineffective position upon movement of the level` to said ineffective position; and a block on the lever to obstruct releasing movement of the machine release shaft to prevent operation of the machine when the tension roller is in ineffective position.

12. In a machine of the class described; the combination with a machine release shaft; a feed roller; and a tension roller; of manipulative means to move the tension roller to an ineffective position; a lever to restrain the ten sion roller in its effective position, the lever adapted to be moved to release the tension roller so that the tension roller may be moved by the manipulative means; a block on the lever; and means intermediate the block and the machine release shaft to restrain said shaft against releasing movement to prevent operation of the machine When the tension roller is in ineective position.

13. In a machine of the class described; the combination with a feed roller; a tension roller; and a machineV release shaft; of a latch to maintain the tension roller in its effestive position, the latch adapted to be moved to release the tension roller and means on the latch to arrest the operation of the means on the latch to arrest said means when the latch is moved into its releasing position. 16. In a machine of the class described; the combination with a feed roller; a tension roller; and a machine release shaft; of a latch to maintain the tension roller in its effective position, the latch adapted to be moved to release the tension roller; means operable by the shaft when the shaft is released; and means on the latch to arrest the last-named means when the tension roller is released by the latch.

17. In a machine of the class described; in combination with a machine release shaft; a feed roller; and a tension roller; of means to latch the tension roller in effective position, said means adapted to be moved to unlatching position; means to Withdraw the tension roller into an ineffective position; an element to block restoration of the latch means when the tension roller is in ineffective position; and means to arrest the release shaft when the latch means is in unlatching position.

18. In a machine of the class described; the combination with a machine release shaft; a feed roller; and a tension roller; of means to c latch the tension roller in effective position, said means adapted to be moved to unlatching,r position; a manipulative device; connections between the manipulative device and the tension roller, whereby the tension roller is Withdrawn upon operation of the manipulative device; a projection on the connections to block the restoration of the latch when the tension roller is in ineffective position; and a block on the latch to arrest the release shaft when the latch means is in unlatching position.

In testimony Vwhereof I aflix my signature.

BERNIS M. SHIPLEY.

machine release shaft when the latch is moved to its releasing position.

14;. In a machine of the class described; the combination With a feed roller; a tension roller g. and a machine release shaft; of a latch to maintain the tension roller in its effective position, the latch adapted to be moved to release the tension roller; and a block on the latch to arrest the machine release shaft When the latch is moved into its releasing position. 

